I'm just starting to learn python (3.8.1) and using the Vector SDK.
Every call I make to anki_vector.Robot produces the same error response. For instance running the sample 02_drive_square.py exactly as it is. It works fine - Vector drives in a square. But always the program seems to crash out on the last command:
Traceback ....
robot.behavior.turn_in_place(degrees(90))
....
File "C:\Program Files (x86)\Python\Python38-32\lib\concurrent\futures_base.py", line 437, in result
raise CancelledError()
concurrent.futures._base.CancelledError

I can provide the full code if that would be helpful.
Malcolm